jack n.千斤顶;插座;船首旗;男人;公畜vt.用千斤顶顶起;抬高n.杰克(男子名)n.扑克牌里的Jn.水手;侍者
详细释义
名词 jackscrew:
screw-operated jack
双语例句
Each of the four legs contains a simple screw jack with a thrust bearing that is operated telescopically inside of two tubes. 四条腿中每个都装有一个简单的螺旋千斤顶,千斤顶中又有一个在两根管道中做伸缩操作的推力轴承。